查询词典 diatomaceous earth

The brilliant lights and the earth-shaking sounds were caused when the cosmic dark matter turned into the brightened matter but not by the aerolite falling into the earth.

它的起因是宇宙空间静电变异。

But as industry booms on earth, greenhouse gases, like carbon dioxide and methane, are released into the air—and trap more and more of the sun's energy in, so the earth's temperature rises.

但是由于地球上工业的迅速发展，诸如二氧化碳和甲烷之类的温室气体被释放到空气中――从而又把越来越多的太阳能聚集回地球，地球温度因此而升高。

Use method of dip basin grow seedlings normally, load right amount sandiness earth inside the basin namely (fine sand 3, loam 6, organic fertilizer 1), undertake alexipharmic, scatter the seed in earthy watch next, do not want to earth up, but should build a glass, maintain the air inside the basin wet.

通常用浸盆育苗法，即在盆内装入适量的沙质土（细沙3份，壤土6份，有机肥1份），并进行消毒，然后把种子撒在土表，不要覆土，但要盖一块玻璃，保持盆内空气湿润。

Promotion effects of alkaline earth metals and rare earth metals on catalytic activity and coking resistance of the catalyst are also described.

阐述了碱土金属和稀土金属助剂在提高催化剂的重整活性和抗积炭能力方面的作用。

The anion-exchange ion chromatography is suitable for the separation and analysis of alkaline earth metal ions, transition metal ions and rare earth metal ions.

综述了离子色谱法分析金属离子的研究进展，对目前应用于分析金属离子的阳离子交换IC、阴离子交换IC和螯合离子色谱进行了评述。

The components comprise the following materials: 40 to 50 percent of GeO2, 20 to 25 percent of SiO2, 0 to 10 percent of Al2O3, 5 to 16 percent of MO or MF2, 0 to 10 percent of R2O3, and 1 to 10 percent of ZrO2; the M is one or more of the alkaline-earth metal ions, the R is one or more of the trivalent rare earth ions.

一种0.3～5um波段红外透过耐高温玻璃陶瓷材料及制备方法，成分包括GeO 2 40-50％，SiO 2 20-25％，Al 2 O 3 0-10％，MO或MF 2 5-16％，R 2 O 3 0-10％，ZrO 2 1-10％；M为碱土金属离子中的一种或几种，R为三价的稀土金属离子中的一种或几种。

The effect of alkaline metal, alkaline-earth metal or rare-earth metal oxides doping to Pd/γ-Al〓O〓 on the properties of supported palladium catalysts were investigated.

研究含氧条件下单Pd催化剂上进行丙烯选择催化还原NO的反应，考察浸渍法制备的Pd/γ-Al〓O〓催化剂中加入碱或稀土金属氧化物助剂对NO转化率的影响，并对催化剂进行了XRD表征及在氧化气氛中饱和吸附NO后的TPD研究。

Determination of total content of rare earth in rare earth drier and content of hydroxyl in solvent- free alkyd resin are introduced and then compared with the traditional methods.

介绍了稀土催干剂中总稀土含量和无溶剂醇酸树脂中羟基含量的测定，并和传统方法作了比较。

During the electrodes buryied beneath the shallow earth surface were supplied with direct current, the electric-field distribution in anisotropic earth crust could be calculated by applying image method and electrostatic analogue method in electromagnetics.

以垂直于介质主轴方向的平面作为两种介质的分界面研究，对埋在较浅地表中的直流电极，以及其向大地供电而引起的各向异性地壳中的电场分布。

Pretreatment can take full advantage of the local rock layers or the stability of their own, linked with the excavation layered reinforced concrete spraying.soil and debris to avoid the small joints broken rock slope collapses, and earth pressure anchor plate passed by the concentrated suspension bolt,bolt through the anchoring force of earth pressure balance.

可以充分利用岩土层自身或预处理的局部的稳定性，随基坑开挖分层挂钢筋网喷射砼，以避免土层碎片及岩石边坡小的节理破碎坍塌，并把土压力传给锚板，由锚杆集中受力，通过锚杆的锚固力平衡土压力。

Those who loved reading were obliged to send for their books from England; the members of the junto had each a few

那些喜欢看书的人就得从英国购书，讲读俱乐部的的成员每人都有几本。

Three fourths of the earth's surface is covered with water.

地球表面的四分之三被水覆盖着。